EveryDay Code

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Leetcode 21 Day Challenge - Day1

Leetcode 21 Day Challenge – Day1

Q. Defanging an IP Address.

https://leetcode.com/problems/defanging-an-ip-address/

Given a valid (IPv4) IP address, return a defanged version of that IP address.A defanged IP address replaces every period "." with "[.]".

def defangIPaddr(self, address: str) -> str: address = address.replace(".","[.]") return address

Python , replace function works ->…

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Inner Classes

Inner classes … why? when ? how? .

Let’s begin. The reason we use classes is to maintain some order in our code, have a kind of template for everything needed now and future, so some random guy 3-4 months maybe years if the need still remains the same has some idea what is needed to use/create/pass an object for some random purpose.

So let’s say we have a class named as Human having just…

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Java Regex - IP Address

Java Regex – IP Address

Let’s begin with Regular Expression.

The most easy and difficult topic at the same time. These tricks can be learnt simply by breaking down a large into smaller and solving smaller which can be then scaled up to kill the bigger giant. There are various things that you can keep in mind such as letter d to represent digits , s for whitespaces, * for 0 or more , + for 1 or more which can be see

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